Clicking the "listen" button in Google Translate is a great way to listen to a translation, but it's often hard to understand what it says. Google Operating System points out that when you click it again, it speaks slower.
All you need to do is head to Google Translate, translate some text, then click the listen button. If you need to hear it again, click the listen button again and it will speak slower.
Listen Again in Google Translate [Google Operating System]